1) It's one of the only wireless cards with a driver in Windows that
supports monitor mode.

It integrates well with Wireshark and Cain.

Its driver can decrypt WEP traffic on the fly (with a known key)

2) If you're stuck using Windows, then AirPcap is your easiest option
for monitor mode. Otherwise, if using linux you are better off with
an atheros or other card, since AirPcap isn't "officially" supported
in linux by the manufacturer (although you can use modified zd1211rw
drivers to get it working)

Its a handy card for windows but its a little expensive... easier to
just boot into linux and use something cheaper.

JJ

On Wed, Mar 25, 2009 at 8:59 PM, Security Basic
<security.basic (at) gmail (dot) com [email concealed]> wrote:
> Can someone help me with very basic questions about AirPcap
>
> # Whats so special about it?
> # What can you do with AirPcap that you can't do otherwise
>
> thanks
> --
> ~SB
> http://exploitsearch.com
>